Uwe Stöhr wrote:
I know that my Linux knowledge is very limited. So what I understood now
is that the Linux distribution you are using determines the available
Qt, right? If so, isn't there a simple update possibility for Qt in the
package handling program of the used distribution?
It is easy enough - _if_ a new version of the qt package(s) exist
for that distribution. Easy enough for debian, which really is three
distributions (stable, testing and unstable). And mixing these three is
designed to work reasonably well too.
So I can choose from 4.2.1, 4.4.3, and 4.5.1. Of course, changing qt
version may very well force an automatic change of 20 other packages
that depends on the qt libraries. Again, debian handles this well _if_
all those packages can be up- or downgraded as needed. (I.e. they all
exist.)
BUT:
* Not all distros have several versions of qt available
* Not all distros can update 20-50 packages without lots of work,
they don't all have automatic up/down-grading & downloading of
all dependand packages.
* Unlike debian, not all distros are designed to mix versions. Some
people actually reinstall their linux when a new version comes out.
Reinstalling (and re-doing _all_ customization and machine-specific
setup) is apparently simpler for them than just upgrading.
Then there are unixes other than linux. They usually have less manpower
and therefore fewer versions to choose from.
Helge Hafting
